When you use rails generate scaffold admin/user --model-name=User or rails generate scaffold_controller --model-name=User it generates almost everything in a namespaced fashion. You get app/controllers/admin/users_controller.rb with your controller and app/views/admin/users/ filled with your views.
The one thing it doesn't get right is your paths. You have to manually go and replace references to user_path with admin_user_path and the like. This is pretty tedious.
Is there a way to tell Rails to generate the paths to point to your new namespace, rather than the namespace that the model is in?
Using Rails 4.
With rails build-in generators you can't.
See the generator source code to understand why:
<td><%%= link_to 'Show', <%= singular_table_name %> %></td>
<td><%%= link_to 'Edit', edit_<%= singular_table_name %>_path(<%= singular_table_name %>) %></td>
<td><%%= link_to 'Destroy', <%= singular_table_name %>, method: :delete, data: { confirm: 'Are you sure?' } %></td>
</tr>
As you can see, it goes with edit_<%= singular_table_name %>_path to generate the edit path, without considering name-spacing. (And haml-rails does the same)
The best thing to do, if you have time and patience for it, would be to fix this on the codebase and propose a PR. That's the main point of open-source after all.
If you go this direction, have a look first at open issues, I haven't dive deep into but it seems that different conversations are going on about that matter. Like https://github.com/rails/rails/pull/13927 or https://github.com/rails/rails/issues/21652
Or you can use existing gems like Beautiful-Scaffold that seem to be supporting namepacing